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PROPRIETARY AND CONFIDENTIAL

Oct. 2013

Energy Business Division

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Introduction of INR18650-25R

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PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Contents

INR18650-25R

• Specification

• Capacity (0.2C vs. 10A)

• AC/DC impedance

• Capacity & temperature vs. discharge capacity

• Energy & avg. voltage at different current

• Cycle life

• Pulse cycle life

• Low temperature voltage profile at 10A

• Storage characteristics

• Safety test

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Specification

Type Spec. Typical INR18650-25R

Chemistry NCA NCA

Dimension (mm) Diameter 18.33 ± 0.07 18.33 ± 0.07

Height 64.85 ± 0.15 64.85 ± 0.15

Weight (g) Max. 45.0 43.8

Initial IR (mΩ AC 1kHz) ≤ 18 13.20 ± 2

Initial IR (mΩ DC (10A-1A)) ≤ 30 22.15 ± 2

Nominal Voltage (V) 3.6 3.64

Charge Method (100mA cut-off) CC-CV (4.2± 0.05V) CC-CV (4.2± 0.05V)

Charge Time Standard (min), 0.5C 180min 134min

Rapid (min), 4A 60min 55min

Charge Current Standard current (A) 1.25 1.25

Max. current (A) 4.0 4.0

Discharge

End voltage (V) 2.5 2.5

Max. cont. current (A) 20 20

Max. momentary pulse

(A, <1sec) 100 100

Rated discharge Capacity Standard (mAh) (0.2C) 2,500 2.560

rated (mAh) (10A) 2,450 2.539

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Capacity _ 0.2C vs. 10A

0.2C capacity

10A capacity

Cell Capacity(Ah) Energy(Wh) Avg. volt(V)

1 2.555 9.36 3.66

2 2.557 9.37 3.66

3 2.557 9.37 3.67

4 2.564 9.39 3.66

5 2.565 9.40 3.66

Avg. 2.560 9.38 3.66

Cell Capacity(Ah) Energy(Wh) Avg. volt(V)

1 2.533 8.71 3.44

2 2.531 8.70 3.43

3 2.539 8.74 3.44

4 2.544 8.77 3.45

5 2.548 8.76 3.44

Avg. 2.539 8.74 3.44

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL AC/DC Impedance

AC-IR DC-IR

AC-IR

13.20 ± 2mΩ

DC-IR

22.15 ± 2mΩ

Mean 22.15

StDev 0.1676

N 30

Mean 13.20

StDev 0.3972

N 256

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Capacity & Temperature vs. discharge capacity

Discharge current

1C 5A 10A 15A 20A 25A

Capa.(Ah) 2.496 2.518 2.556 2.550 2.525 2.472

Temp.() 31.6 41.2 60.6 78.4 95.2 106.8

Time(min.) 59.9 30.2 15.3 10.2 7.6 5.9

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Energy & Avg. voltage at different current

Discharge current

1C 5A 10A 15A 20A 25A

Energy(Wh) 9.02 8.95 8.79 8.55 8.25 7.84

Avg.

voltage(V) 3.61 3.54 3.44 3.35 3.27 3.18

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Cycle life _ 20A cycle

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Cycle life _ 30A cycle(70 T-cut)

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL High pulse cycle life

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL High pulse cycle life 2

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Low temperature discharge (10A)

0 -10 -15 -20

Capacity(Ah) Capa.(%) Capacity(Ah) Capa.(%) Capacity(Ah) Capa.(%) Capacity(Ah) Capa.(%)

10A 2.323 92.9 2.398 95.9 2.413 96.5 2.407 96.3

2.298 91.9 2.385 95.4 2.421 96.8 2.386 95.4

Avg. 2.310 92.4 2.392 95.7 2.417 96.7 2.397 95.9

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Storage at 60

Recovery Retention

Storage at 60

storage

day

initial after storage Ratio(%)

ACIR DCIR Capacity ACIR DCIR Retention Recovery ACIR DCIR Retention Recovery

50 13.2 20.2 2597 15.3 29.3 2122 2393 115.8 145.2 81.7 92.1

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Storage at 60

AC-IR DC-IR

Storage at 60

storage

day

initial after storage Ratio(%)

ACIR DCIR Capacity ACIR DCIR Retention Recovery ACIR DCIR Retention Recovery

50 13.2 20.2 2597 15.3 29.3 2122 2393 115.8 145.2 81.7 92.1

PROPRIETARY AND CONFIDENTIAL

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PROPRIETARY AND CONFIDENTIAL Safety test

Test item Spec.

Results OK/NG Remark

Results Max. temp.

Electrical

Abuse

Overcharge 20A 20V(UL) L1 3L1 115.6 OK

Short circuit 10mΩ at 23 L1 3L1 55.0 OK

Mechanical

Abuse

Impact UL L1 5L0 22.6 OK

Crush UL L1 5L0 23.9 OK

Thermal

Abuse Hot oven 140 L1 3L1 144.0 OK

Level 0

•No change

Level 1

•Leak

Level 2

•Smoke, < 200

Level 3

•Smoke, > 200

Level 4

•Fire

Level 5

•Explosion